I have a friend who has serious problems of self-esteem. She procrastinates and think that she can't do even simple things she actually can do.

She is negative and needs help.

She is also self-boycotting.

She refuses help and finds thousands of excuses to reject help and pretend that no help works for her.

My question is: is it better for my own psychological well-being if I avoid talking to her?

I think that her negativity may only damage me and I know that I can't help her in any way because I'm no psychologist and also because she refuses help.

She is one of those people who wants to suffer and wants everyone around them to suffer as well.

In other words: is it best for my own psychological well-being to avoid spending time with negative people like my friend?

Is it better, instead, to stay with people who care about their psychological well-being?